Rumba Case with optional Display Stand

This case is for the [Rumba](http://reprap.org/wiki/RUMBA) 3D printer card and optional also for the [RepRapDiscount Display](http://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller)

The display stand is designed so it can be turned around and the display can as well be mounted one way or the other.

BOM Case:
* 1 x Bottom Case
* 1 x Top Case
* 1 x 80mm fan
* 1 x [80mm fan guard](https://www.thingiverse.com/thing:1879694) Thanks to [freemark](https://www.thingiverse.com/freemark) for this fine fan guard design
* 4 x M3*6mm bolt for Rumba board mount
* 4 x M3*40mm bolt for Case assembly
* 4 x M3*40mm bolt for Fan 35mm is better if possible (3x30mm can be used if no fan guard is used)
* 8 x M3 Nut

BOM Display:
* 1 x Display Stand
* 1 x [Display Lid](https://www.thingiverse.com/thing:516447) Thanks to [e-nozzel](https://www.thingiverse.com/e-nozzel) for this fine case design
* 1 x [Knop](https://www.thingiverse.com/thing:516447) Thanks to [e-nozzel](https://